Elia RokachMortgage advice · Rehovot, Israel

How to Calculate Whether Refinancing Your Mortgage Pays Off, Step by Step

Collecting the data, calculating the fees, comparing payment and total cost, and the break-even point, with a numerical example.

2 min read · Updated: 2026-11-04 · By Elia Rokach, mortgage advisor · Translated from the Hebrew original

Please note: advisory meetings and the service itself are provided in Hebrew only. These guides are here so you can read and understand the topic in your own language.

To know whether refinancing pays off, you need to compare two scenarios: staying with the existing mortgage or refinancing. Here is how.

Step 1: Collect the data

Ask the bank for a payoff balance statement for each track: balance, rate, remaining term, and the fees that would apply if you repaid today.

Step 2: Calculate the cost of refinancing

Step 3: Calculate the new payment

On the same balance and over the same term (so the comparison is fair), with the rates the bank offers today.

Step 4: The break-even point

How many months does it take for the monthly savings to cover the cost of refinancing?

An example

A balance of NIS 900,000, an average rate of 5.5%, 22 years remaining. A new offer at 4.6%. - Payment today: about NIS 5,885. - Payment after refinancing: about NIS 5,425. - Monthly savings: about NIS 460. - Refinancing costs: NIS 8,000 → break-even after about 18 months. - Total savings over the period: over NIS 110,000.

(A simple calculation at a non-linked rate.) Enter your own data in the refinancing calculator (in Hebrew).

Elia's tip: Do not compare only the monthly payment. If refinancing extends the term, the payment will fall even without any real savings. Compare the total payments too.

What the calculator does not know

CPI linkage, future exit points, and expected changes in your life. This is where personal advice makes the difference.

This article is general information and is not personal advice or a commitment. Rules, interest rates and taxes change from time to time, so check the current situation and your own figures before any decision.
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